Unit 4: Energy and Unit 6: Simple Harmonic Motion

Kinetic Energy is defined as

• Energy stored due to its location
• Energy of motion
• Energy stored in the bonds of molecules
• Heat energy

You drop a 5 kg ball from a height of 2 m. Just before it reaches the ground, what type of energy does it have?

• Potential Energy
• Kinetic Energy
• Nuclear Energy
• Chemical Energy

The unit for energy and work is

• J

• N

• m/s

• m/s/s

A 5 kg ball is lifted 12 m above the ground. It's gravitational potential energy is

• 60 J
• 600 J
• 17 J
• 2.4 J

The law of conservation states that

• every action has an equal and opposite reaction
• all matter has thermal energy
• energy cannot be created or destroyed, only changes form
• heat moves from an object of higher temperature to an object of lower temperature

The ability to do work is called

• energy
• thermal
• kinetic
• potential

Mechanical energy can be either potential or ________.

• Motion
• Kinetic
• Chemical
• Light

Which position has the most kinetic energy?

• A
• G
• D
• B

Which position has the most potential energy?

• A
• G
• C
• D

A pendulum is released from point C.  Which statement is correct as it  swings from C to A?

• The PE increases and KE decreases
• The KE increases and PE decreases.
• The PE is maximum at A.
• The KE is maximum at C and B.